Pen



April 10, 1934. s. R. PRUYN 1,953,976

PEN

Filed Oct. 10. 1932 1%272222021' Vii/less e5.- maeZRPz y/z,

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Patented Apr. 10, 1934 PATENT OFFICE UNITED STATES 6 Claims.

My invention relates to improvements in pens, and has for an object the provision of a device which will be rigid, extremely smooth in writing, and which will feed in an improved manner. The

pen may be used with a fountain holder or an ordinary pen holder, and will operate very efficiently in either case.

Another object is the provision of a pen which will not require attention to keep the nibs lined up, for the writing point is one solid piece of metal and the pen is not split as the ordinary pens are.

Other objects will appear hereinafter.

A preferred form of my invention may be best understood by reference to the accompanying drawing, in which:

Fig. 1 is a top plan view of my pen inserted in a fountain holder;

Fig. 2 is a side elevational view of the device of Fig. 1, with parts shown in section;

Fig. 3 is a sectional view, taken substantially on the line 3-3 of Fig. 2;

Fig. 4 is a sectional view, taken substantially on the line 4-4 of Fig. 2;

Fig. 5 is a detail view of the feed which may be used with my pen in a fountain holder;

Fig. 6 is a side elevational view of my pen inserted in an ordinary holder, and shows part of the pen in section; and

Fig. 7 is a sectional view taken substantially on the line 7-7 of Fig. 6.

Referring now to Figs. 1 and 2, it may be seen that my pen 10 having an integral shell type body may be inserted in fountain holder 11 and used with feed 12.

The preferred form of my invention may be made from an integral piece of metal and be provided with orifices 13, groove 14, cavity or reservoir 15, and rounded point 16. To the rear of cavity 15 may be provided a small orifice 1'7 having in communication therewith elongated slot 18. Feed 12 may be provided with a longitudinal groove 19 which may be V-shape in cross-section for the major portion of its length, and said groove may be provided with a supply reservoir or cavity 20. In advance of cavity 20 the groove 19 may be made shallow, as at 21.

Referring now to Fig. 6, my pen is shown in use in an ordinary pen holder 22, and it can be seen that while in use in this sort of holder the feed is not necessary as in the fountain holder. The pen point itself is identical with that shown in Figs. 1 and 2, and in this case cavity 15 provides a liberalsupply of ink for rapid writing. The small orifices 13 constitute short capillary tubes communicating with the longitudinal groove 14, the

groove and the orifices together constituting a reservoir for a considerable supply of ink. The surface tension in the capillary orifices restrains the ink from flowing too rapidly or flooding.

When the pen is used in combination with the feeder 12 the capillary orifices 13 have the same restraining function, and the end of the groove 19 of the feeder terminates in the cavity 20. The end of the feeder lies directly beneath the orifice 17, with the slot 18 extending over the cavity 20. The end of the feeder, beyond the cavity 20 is provided with a shallow groove which communicates with the edge of the cavity 15 of the pen, which cavity lies beyond the end of the feeder. This construction provides for an even flow of ink from the reservoir to the cavity 15, from which the ink is supplied to the writing point, with which the lower edge of the cavity 15 is substantially in communication.

It may be readily understood from the foregoing and from an inspection of the drawing that, since my point is solid and not split as in the ordinary pen, the writing surface presented will be smooth and will not become out of line by heavy pressure. The groove 14 in connection with the orifices 13, orifice 17, and slot 18, will aid in insuring a suificiently free flow of ink to reservoir 15 and point 16.

The flow of ink in my pen may be adjusted, as is well known in the art.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described having a writing surface, a plurality of capillary orifices, and a groove in communication and connecting said orifices and extending substantially to the writing surface of said device.

2. In a device of the character described having a unitary shell type body, a writing surface, a groove in communication with said writing surface, a reservoir adjacent said writing surface, and a plurality of capillary orifices in said body and communicating with said groove.

3. A pen having a centrally disposed longitudinal groove in its lower surface terminating adjacent the point of the pen in an enlargement constituting a reservoir, and a series of capillary orifices extending through said pen and communicating with said groove, in combination with a feed bar arranged beneath said pen and terminating beneath the lowermost of said orifices, said feed bar having a longitudinal groove arranged beneath the groove in the pen and terminating in an enlarged portion adjacent the end of said bar constituting a reservoir, substantially as described.

4. A device as set forth in claim 3 in which a slot is provided in the body of the pen extending upwardly from the lowermost orifice and above a portion of the reservoir in the feed bar, substantially as described.

5. A device as set forth in claim 3 in which the point of the pen is unsplit.

6. A pen having an' unsplit point and provided with a centrally disposed longitudinal groove in its lower surface terminating adjacent the unsplit point in an enlargement constituting a reservoir, and a series of capillary orifices extending through said pen and communicating with said groove, in combination with a feed bar arranged beneath said pen and terminating beneath the lowermost of said orifices, said feed bar having-a, longitudinalrgroove arranged beneath the groove in the pen and terminating in an enlarged portion adjacent the end of said 'bar and constituting a reservoir, and a slot in said body extending upwardly from the lowermost orifice and above a portion of the reservoir in the feed bar, substantially as described.

SAMUEL R. PRUYN. 

